ValuelogicUdidInfo Data Type

A UDID is a record in the GDS that defines a custom
information field. This class is mapped in the database
to a specific number that corresponds to hard coded values
in our GDS scripts.
When we import an itinerary, we scan through the invoice for
UDID strings, and parse them out. Then we match them up to
the UDID information that is stored here to determine what
type of savings we are dealing with.